Independent guide · since launch day
The Roman Space Telescope, explained and up to date
What it is, where it is right now, and what NASA's newest great observatory is about to discover. No hype: every fact carries its source.
The mission in numbers
Why Roman matters
Hubble's sharpness with a field of view at least 100 times larger, observing in infrared from the Sun–Earth L2 point.
2.4 m primary mirror
≥100× Hubble's field of view
~1.4 TB of data per day, public from day one
5 years primary mission, extendable
What Roman's 300 megapixels mean How sharp Roman's images will be
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The essential guides
What is the Roman Space Telescope?
The mission explained from scratch: mirror, instruments and what it is for.
Read moreThe launch
August 30, 2026, on a Falcon Heavy. How it went and what comes next.
Read moreMission timeline
Every milestone, past and planned, with its source.
Read moreWhere is Roman now?
Mission day, current phase and the journey to L2.
Read moreRoman science
Dark energy and matter, galaxies, supernovae and exoplanets.
Read moreFirst images
The official window, First Look and what must happen first.
Read moreImages and simulations
Credited gallery: hardware, launch, renders and simulated skies.
Read moreRoman, Hubble and Webb
Direct comparison of mirror, field, wavelengths, orbit and purpose.
Read more